I can't believe you'd say that. You know
how INSECURE I am about my insecurities.
The Big Bang Theory Season 8, Episode 6
You know, I've always been INSECURE
The Big Bang Theory Season 9, Episode 12
...that makes you a little INSECURE.
The Big Bang Theory Season 8, Episode 6
I can't believe
Leonard would be so INSECURE.
The Big Bang Theory Season 10, Episode 22
Look, your whole sweet,
INSECURE thing is cute,
The Big Bang Theory Season 12, Episode 3